Video : Space Shuttle Atlantis touches down in Florida, won't be going back up again

  With the Atlantis touching down successfully at runway 15 at Kennedy Space Center. Crewmembers Chris Ferguson, Doug Hurley, Sandy Magnus, and Rex Walheim are back on our planet and, traveling at speeds decidedly slower than escape velocity, can officially put a cap onto this historic series of space missions that we, at least, will never forget. In the words of NASA: "Job well done, America."